Ahlen, Kaldewei Kulturstiftung / Courtesy Galerie Kornfeld, Bern

Los Angeles Iris & B. Gerald Cantor Foundation

Courtesy Galerie Thomas, München

Courtesy Metropolitan Museum, New York (Sabine Rewald)

Courtesy Galerie Thomas, München

Kansas City, Missouri, The Nelson-Atkins Museum of Art. Gift of the Friends of Art, 54-86. Image courtesy Nelson-Atkins Media Services / Photo: Jamison Miller